<!DOCTYPE html>
<html>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
	<title>测试文档无标题</title>
	<style type="text/css">
	* {
		padding: 0;
		margin: 0;
	}
    </style>
</head>
<body>
	<h1>Hello</h1>
	<script src="https://cdn.staticfile.org/jquery/3.5.1/jquery.js"></script>
	<script type="text/javascript">
	"use strict"
	const INFO = {
	  url: 'https://www.houdunren.com',
	  port: '8080'
	};

	INFO.query = {id:3, age:13}
	console.log(INFO) ;
	console.log(JSON.stringify(INFO)) ;

	Object.freeze(INFO)

	// INFO.path = '/pathname'
	INFO.query.id = 5
	console.log(JSON.stringify(INFO)) ;


	</script>
</body>
</html>